package leetcode.day_2020_12_14_12_21;

public class L_617 {
    public static void main(String[] args) {

    }

    public static TreeNode mergeTrees(TreeNode t1, TreeNode t2) {
        if(t1 == null) {
            return t2;
        }
        if(t2 == null) {
            return t1;
        }
        TreeNode merged = new TreeNode(t1.val + t2.val);
        merged.left = mergeTrees(t1.left, t2.left);
        merged.right = mergeTrees(t1.right, t2.right);
        return merged;
    }
}
